a(n) = lcm(n, R(n)) / gcd(n, R(n)), where R(n) (A004086) is the digit reversal of n.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =1a(9) =10a(10) =1a(11) =28a(12) =403a(13) =574a(14) =85a(15) =976a(16) =1207a(17) =18a(18) =1729a(19) =10a(20) =28a(21) =1a(22) =736a(23) =28a(24) =1300a(25) =403a(26) =24a(27) =574a(28) =2668a(29) =10